SAN FRANCISCO – Authorities say three men with clown masks and a gun ran from a downtown San Francisco shopping center after they were discovered by security guards on Sunday.

The San Francisco Examiner reports (http://bit.ly/2dCrzix) San Francisco Police Department spokesman Officer Carlos Manfredi says the guards were doing their rounds in the emergency stairwells in the mall when they came across the three men. Manfredi says one brandished a gun.

No one was injured.

The men remain at large.

The report joins a growing number of incidents involving clowns in the San Francisco Bay Area and nationwide.

WASHINGTON – Hillary Clinton challenged Congress on Thursday to combat fake and misleading news on social media, using a post-election appearance to tackle an issue that gripped her presidential campaign and culminated with a shooting incident Sunday in Northwest Washington.